Radeon R7 240 vsGeForce 945A

Meanwhile the R7 265 isn’t going to catch up to the GTX 660, but with that full 256-bit memory bus and the higher memory clockspeeds Pitcairn parts enjoy on the 200 series versus the 7800 series, it has enough memory bandwidth to hold close to the GTX 660.

This graphics core incorporates several new features that allow it to improve energy efficiency by 40 percent - essentially giving longer battery life for the same performance or improving performance when you really need it," Kolar wrote.